Ondi says the comic turned control freak when she refused to remove a string of scenes from Brand: A Second Coming.

Brand, 40, demanded she edit out footage of him being arrested while high on drugs and naked at a protest, as well as him discussing torturing a family dog.

Control freak: Brand reportedly attempted to get stars to boycott documentary's European premiere

But Ondi – called in after five other directors fell by the wayside – refused.

She says Brand then turned his back on the project, boycotted the finished film and ordered the rest of the cast, including rocker Noel Gallagher and even his own mum, to snub the film’s European premiere at London Film Festival last week.

American Ondi, 42, said: “He demanded that they don’t come. It’s just crazy. He’s not happy with the final edit and he’s small. A child. It’s like a schoolyard bully.

“God forbid the royal Russell Brand sours to you. It’s disappointing because I believed in him and I did everything I could.

“But he can’t see past himself. He is a narcissist. And he’s ruthless.”

As well as the naked protest footage – which Ondi did tweak to protect his modesty – Brand asked for clips of him playing romantically with his pop star ex-wife Katy Perry to be cut.